171 lines
6.8 KiB
C
171 lines
6.8 KiB
C
/*
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** ###################################################################
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** Processors: MKL25Z128VFM4
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** MKL25Z128VFT4
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** MKL25Z128VLH4
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** MKL25Z128VLK4
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** MKL25Z32VFM4
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** MKL25Z32VFT4
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** MKL25Z32VLH4
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** MKL25Z32VLK4
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** MKL25Z64VFM4
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** MKL25Z64VFT4
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** MKL25Z64VLH4
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** MKL25Z64VLK4
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**
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** Compilers: Keil ARM C/C++ Compiler
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** Freescale C/C++ for Embedded ARM
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** GNU C Compiler
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** IAR ANSI C/C++ Compiler for ARM
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** MCUXpresso Compiler
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**
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** Reference manual: KL25P80M48SF0RM, Rev.3, Sep 2012
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** Version: rev. 2.5, 2015-02-19
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** Build: b170112
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**
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** Abstract:
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** Provides a system configuration function and a global variable that
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** contains the system frequency. It configures the device and initializes
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** the oscillator (PLL) that is part of the microcontroller device.
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**
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** Copyright (c) 2016 Freescale Semiconductor, Inc.
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** Copyright 2016 - 2017 NXP
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** Redistribution and use in source and binary forms, with or without modification,
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** are permitted provided that the following conditions are met:
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**
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** o Redistributions of source code must retain the above copyright notice, this list
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** of conditions and the following disclaimer.
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**
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** o Redistributions in binary form must reproduce the above copyright notice, this
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** list of conditions and the following disclaimer in the documentation and/or
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** other materials provided with the distribution.
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**
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** o Neither the name of the copyright holder nor the names of its
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** contributors may be used to endorse or promote products derived from this
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** software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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** ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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** ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**
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** http: www.nxp.com
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** mail: support@nxp.com
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**
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** Revisions:
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** - rev. 1.0 (2012-06-13)
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** Initial version.
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** - rev. 1.1 (2012-06-21)
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** Update according to reference manual rev. 1.
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** - rev. 1.2 (2012-08-01)
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** Device type UARTLP changed to UART0.
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** - rev. 1.3 (2012-10-04)
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** Update according to reference manual rev. 3.
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** - rev. 1.4 (2012-11-22)
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** MCG module - bit LOLS in MCG_S register renamed to LOLS0.
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** NV registers - bit EZPORT_DIS in NV_FOPT register removed.
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** - rev. 1.5 (2013-04-05)
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** Changed start of doxygen comment.
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** - rev. 2.0 (2013-10-29)
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** Register accessor macros added to the memory map.
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** Symbols for Processor Expert memory map compatibility added to the memory map.
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** Startup file for gcc has been updated according to CMSIS 3.2.
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** System initialization updated.
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** - rev. 2.1 (2014-07-16)
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** Module access macro module_BASES replaced by module_BASE_PTRS.
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** System initialization and startup updated.
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** - rev. 2.2 (2014-08-22)
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** System initialization updated - default clock config changed.
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** - rev. 2.3 (2014-08-28)
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** Update of startup files - possibility to override DefaultISR added.
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** - rev. 2.4 (2014-10-14)
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** Interrupt INT_LPTimer renamed to INT_LPTMR0.
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** - rev. 2.5 (2015-02-19)
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** Renamed interrupt vector LLW to LLWU.
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**
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** ###################################################################
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*/
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/*!
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* @file MKL25Z4
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* @version 2.5
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* @date 2015-02-19
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* @brief Device specific configuration file for MKL25Z4 (header file)
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*
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* Provides a system configuration function and a global variable that contains
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* the system frequency. It configures the device and initializes the oscillator
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* (PLL) that is part of the microcontroller device.
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*/
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#ifndef _SYSTEM_MKL25Z4_H_
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#define _SYSTEM_MKL25Z4_H_ /**< Symbol preventing repeated inclusion */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#ifndef DISABLE_WDOG
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#define DISABLE_WDOG 1
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#endif
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/* Define clock source values */
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#define CPU_XTAL_CLK_HZ 8000000u /* Value of the external crystal or oscillator clock frequency in Hz */
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#define CPU_INT_SLOW_CLK_HZ 32768u /* Value of the slow internal oscillator clock frequency in Hz */
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#define CPU_INT_FAST_CLK_HZ 4000000u /* Value of the fast internal oscillator clock frequency in Hz */
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/* RTC oscillator setting */
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/* Low power mode enable */
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/* SMC_PMPROT: AVLP=1,ALLS=1,AVLLS=1 */
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#define SYSTEM_SMC_PMPROT_VALUE 0x2AU /* SMC_PMPROT */
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#define DEFAULT_SYSTEM_CLOCK 20971520u /* Default System clock value */
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/**
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* @brief System clock frequency (core clock)
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*
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* The system clock frequency supplied to the SysTick timer and the processor
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* core clock. This variable can be used by the user application to setup the
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* SysTick timer or configure other parameters. It may also be used by debugger to
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* query the frequency of the debug timer or configure the trace clock speed
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* SystemCoreClock is initialized with a correct predefined value.
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*/
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extern uint32_t SystemCoreClock;
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/**
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* @brief Setup the microcontroller system.
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*
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* Typically this function configures the oscillator (PLL) that is part of the
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* microcontroller device. For systems with variable clock speed it also updates
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* the variable SystemCoreClock. SystemInit is called from startup_device file.
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*/
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void SystemInit (void);
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/**
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* @brief Updates the SystemCoreClock variable.
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*
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* It must be called whenever the core clock is changed during program
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* execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
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* the current core clock.
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*/
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void SystemCoreClockUpdate (void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYSTEM_MKL25Z4_H_ */
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